Sheet-metal-edging machine



O e t. 28, 1930. w. R. MAGEE SHEET METAL EDGING MACHINE Filed Aug. 2,1927 3 Sheets-Sheet l Oct. 28, 1930. w. h. MAGEE ,974

SHEET METAL EDGING MACHINE Filed Aug. 2, 1927 3 Sheets-Sheet 2 Oct. 28,1930. w. R. MAGEE SHEET METAL EDGING MACHINE- Filed Aug. 2, 1927 3Sheets-Sheet 3 A TTORNEYJ,

Patented Oct. 28,1930

WILBER, MIAGEE; 0]? ANN ARBOR, mxeflieeu SH ET-METAL-EDGING MACHINEApplication :filed My invention relates;tof,iinprovements in sheet metal1112101111165 ,%for instance, such as are desi med ,for wiring, hemming,or otherwise turning or operating upon the [edges of sheet metahean d.isl more especially an improvement over the st gucture shown in myPatent No. 1,0,48;98& :d2\ted December 31st,

In prior petent; refe'i'red m, the edge offhe workiwzis glyen apredeterminedifoim in a single pessthi'ough themochine;i'lihere,

the initiallyecting dies for efiecting the preliminz rynbend' of t-he21, maj or sub-(frame;swingiblein,a horieont 7 planeywhlleithehfiiue ngdles Wereear led I'bya minor horizontally swing'able sub-ffeine ozu zied by the major sub-frame. By mounting the dies-inthis .f as hion .i

curved, oreompoundeu e p ords, the'horizontellylswingeble mounting ofthe secondaryfzmdkfinishiug dies en bled them. Within Certain limits tofollow. the

'curve of the; workffe'dge.

,T hewmain; difioult-y with the iaiented;

etructure=n1aniifeeted itself when the; edge of v the Work definedShplit IRdiiCOlfipQulid or opposite eur ves'. .,By this I mean a work- 1edge ineluding first, an arc; of a V circle hav-- ing enoutside radius,that i s to s'eywhere coompoun'd or"oppositeiy'di e the center ofthe'.eire'leiis located outwardly of th pfichofilie vWork thfough'theinitiel.dies; andseeondly t he' workedge hex/ingen oppositely curved .o

, inside mdiused er o Where thecenterof'ithe ei fcle lies on the samesideofthepeth of the WO-I'k as does the maiup'art fthemaeh Tontoput itdi fi' fefently whe e the 4 center of the eirele lies inwardly ou-outwgi dlyfof the edge of the wold;- lPrBsen dayshotmfim 'wfi pa ioulzizlyin, i-the automot ve ran image); #P ehe: E -)5, i bou sf P edge ourvesof- Short iadii'in the mme g l'e I f o k Thei ei z ntelly wine m jor aminor s ub-"f rzimegdie's oft the z tented maiohihe can 'ge eurves of lnslde e SZLIILBgPlGCG; o fjmetal,

I k or stock were fixedly jour'nailed in; the machine The secondaryvset, of. dies uyeremarried Thy i [as possible to, operate upon Workhaving scraulghc3 dg t not e' g eat eaving'of time end enabli b eefinished'ina singleaise throug the ma chine v i The invention has foif1a stillifurther and I outside fadius,depending ou the pa Ang '2, 132?.Serial, No. 1-21o,1s7.v

and the machine can bebuilt to turn either a i V very shortinside mdiusedeul ve or every shore outside radiusedv CLlI'VQ,-bl1i not 7 both.Hence, twouiachiues a1 e ne oesseiy,+one for short inside radiusedourvegend onefi o short' outside rediused curves. Furthermore t henecessary ehifti'l gofthe or:

from one machine to another slows down production endjthis, of course iseven more I ob ecblonel than the cost 015 the entree ma chine.

side. Yariety inthe same piece of metal.

Another job -eet ofthe invention i esidesin the provisionof'a sheetmetal edgingime 70 chine, having means whereby 'the wofk engagingelenents may bereedily edjustedioi" turning curves. of r short insidejorshort out side rediijugithout' the necessity of removing thle'workzfrom the muehineijthus 'effeeti g a 1 a job to more Specific .objectijo'fi' u1nish in a machine ofthiekiud hevingtwosefis of eoractingdies,

one swingable end the other fiyled,-a' novel defuountable eerrieiquponwhijeh the swingable support foi th'efirst named die-set is pivoted, the.cm'riei havingdneuns whereby it may be i'eadiiyedjusted so as toshifhthe pivot point of thesivingable dieeet support with lespecbtofixed die sei so t m'tgboth ofdieemay be included; ingeifther an ,oi'veryishort'in 7 thus or one of vei short extreme positioniit Whi supportcajrrler isiset.

:1 w The foregeing;and oiher features ofno veltywhich;characterizetheinvention, ate pointed outtwlthparticularity n the claims i annexed to Tndfformmg a pe t of th s SPBClfiozition; ;However, in o1de1 thutfleinven tmn'meybe', better understood and its adventagee appreciated,irefe 'en ce should; be had fto thee accompanying idra wing s I enddeserip tive matter which disclose in concrete form a preferredembodiment of my improvement. Since it will be manifest to those skilledin the art that the invention is capable of other mechanicalexpressions, I specifically reserve the right to make such changes andmodifications in the structure shown as fairly fall within the spiritand scope of the appended claims.

In the drawings, wherein the same reference characters designate thesame parts in all views,

Figure 1 is a perspective view of a portion of the frame of a metal edgefinishing machine and illustrating the application of my invention;

Figure 2 is a side elevation;

Figure 3 is a group perspective view of the adjustable carrier plate forthe major sub frame and the securing and adjusting elements associatedtherewith;

Figure 4 is a somewhat diagrammatic top plan view, omittingnon-essential details and illustrating the device set for a work edgecurve of the minimum outside radius that it is ada ted to handle, andshowing in dotted lines t e minimum inside radius'ed are that the diescan follow at this adjustment;

Figure 5 is a view similar to Figure 4 but showing the device set for anarc of minimum inside radius;

Figures 6, 7 and 8 are detail views illustrat-' ing, respectively, theinitial, secondary and finishing diesand their action on the work in theedge wiring thereof.

Referring specifically to the drawings, A indicates a fragment of themain frame or standard of a sheet metal edging machine, the I standardhaving a lateral horizontal projection 1 in which are journalled thesuperposed oppositely driven shafts 2, 3 upon the outer ends of whichare keyed the co-acting initial dies 2, 3 respectively. Th'edies, 2, 3are of a form for wiring the edge of the work as shown in Fig. 6, but itis to be understood that other kinds of dies may be used according tocharacter of work to be done. V

The shafts 2, 3, may be driven in any suitable manner, as shown in myprior patent,

to draw the work between the dies 2, i 3. Shaft 3 is capable of verticaladjustment as in the patent.

Thesecondary dies 4, 5 are of the form shown in my prior patent, theirshanks being vertically journalled in a horizontally swingable majorsub-frame 6 attached by a pintle or hinge pin 7 which extends throughthe laterally projecting frame ears 6" and the interposed integralsleeve bearing 8* of the carrier plate 8 which is adj ustably carried bythe standard projection 1 above the shafts 2*, i

3'. The nature shown in Fig. 7. p j

The finishing dies 9, 10 (Fig. 8) as in the patented structure, arehorizontally jourand action of dies 4, 5 is 19" to 180 degrees. 19" 1sturned in a counter-clockwise direct-ion nalled in a minor sub-frame 11whose sleeve bearing 11 is interposed between spaced ears 6 of majorsub-frame 6. A pivot pin 11 extending through said ears 6 and sleevebearing 11 swingably attaches the two .subframes.

Levers 3", 5, and 9 are adapted to actuate the respective dies 3, 5 and9 to and from coacting relationship with their mates and since they formno part of this invention they are only casually mentioned herein.

Referring to Fig. 3, the carrier plate 8 is shown as having a pair ofvertically spaced transverse holes 12 which are somewhat elongated inthe direction of the length of plate 8 and receive the intermediatecylindrical enlargements 13 of bolts 13. One end of each bolt'13 isadapted to be threaded into a hole have countersunk shouldersat theinner surface of the carrier plate 8 to receive flanges 13". ,The otherends of the'bolts 13 extend through holes in a bracket plate 14 toreceive nuts 15 whereby the carrier plate 8 will be slidingly secured tothe standard projection 1 for lengthwise movement. The rear end of theplate 8 may have an inner surface groove 16 to receive the head of aT-headed stud 17 which extends into a drilled hole in the surface ofprojection 1 and acts to further guide the platein its movement. Fig. 1illustrates thatthe rear end of plate 8 extends between a removablecasting 18and frame projection 1. Thus, the necessityfor employingshoulder bolts 13 at this point is obviated. Frame casting 18 also holdsT-stud 17 in its operative engagement with the plate 8 and standardprojection 1, as suggested in Fig. 1

Themeans fol-shifting carrier plate 8 to 7 its extreme positioncomprehends a cam member 19 working in a hole 20in the plate 8 andhaving its reduced inner shank portion receive in a bronze bushing 21embedded in the smooth face of projection 1. Plate hole 20 has acountersunk shoulder 20 to receive the flange enlargement 19 of thecam,the object of which flange enlargement is to prevent withdrawal ofthe cam except upon removal of plate 8. The wprojecting end of cam 19has alateral finger piece 19 upon' one face, of which is printed thewords inside radius while upon the other face is printed the wordsoutside radius. Pins 22 at either side of hole 20limit the throw offinger piece Thus,jwhen finger piece the plate 8 will be shiftedoutwardly and the inside radius inscription will be exposed toindicatethat the device is set for work of Conversely, when the shortinside radius. 7 finger piece 19? is swung in a clockwise direc-' tionthe outside radius inscription will-be visible to indicate thatthe'plate Shasbeen drawn inwardly so that the dies will'be permitted tofollow work edge curves of short out-side radius.

As will be gathered 'tronrt he; preceding,

description, adjustment of the machine; for

either inside or outside curves ot' 'short radii is effected byshifting. the pivot 1301117015 the major sub-frame 6 so as to changetherela tive position of the arc inwhich dies 4; 5swing with respect tothe fixedly journalled dies 2, 3.

By moving plate 8 inwardly it is; possible as shown in Fig. 4, to locatethe dies 5' of the major sub-frame 6 and-the dies 9, of the minorsub-frame 11 in an arc of short outside radius which will alsoincludetheeffective work engaging points -Pofthe fixedly journalled initial dies2, 3. In Figure 4 the short outside radiused work edge are referred tois .indicated'by full line B uponwhich the work engaging, points of" theprimary, secondaryand final dies are dia'grammatically indicated by P. Pand P respectively. In order that a contrast may be gotten I haveindicated in Figure lby dotted line Gthe shortest inside radiused arewhich the majorandininorsub frame dies can follow when the machine isatthe outside radius adj ustment, the relative positions of thework-engagingdie portions P, P and-P being shown'upon said-dotted lineC. As clearly indicated;the-radius of are C is commensurately greaterthan the radius of arc'B: g By comparison of Figure 5wvhere1n the plate8 carrying the pivot point 7 is shown? shifted to the inside radiiPOSliJlOIl (namely,

to its outermost limit) ;with the showing in Figure a it willbe-noted'thatitis possible to include'all three setsof dies 2, 3 9, I0and 4,- 5"

in an are C ofvery short inside radius." Fig:

ure 5 also indicates by dotted line B the short-- est outside radiusedare in which chesQ, 3 9,

10 and 4, 5 can be located at this setting of this machine, the exactlocationof the work engaging points RP and'P ofithe dies-indicated ineach instance; I

Of course straight-edged work-can be opzer-- ated'upon at either settingof plate 8*and it' is also clear that finishingdies 9,10 ofthe minersub-frame will readily followeither'a short radius inside or outside areat either setting of plate 8 inasmuch as the pivot pointll thereof'isfixed with respect-to; major subframeG.

The actualshift of the carrier plate arm 7 one extreme position to "theother is: about three eighths of an inch, Sin'ce t h'e machine will turnout athousand pieces {of work a day, itis possiblefthat two thousand ormore shifts of'the plate 8 may be necessary, :Hence I I provide, andprefer the cam element 19 as the shiftingmeans because of its simplicityand ease of opera'tion. Furthermore, the finger plece 19 ofthe camelement serves as an" indicator to denote the 'position'at whichtheplate 8 is located. Other plate actuating means might be availed ofwithin the scope of my invention. Here, it might beobserved that thepro-per time for shiftingthe plate 8 is just at the beginning of thecurve in the workedge,although of course where the piece of work"involves but one short radius edge curve the setting ofplate8 willbemade beforehand.

In Figure 1, numeral 23 designates a gauge roll, while'the wire stockisindicated at 24:. As previously mentioned, the drawings show the machineequippedwith edge wiring dies, but it'must' be borne in mind that theyare merely illustrative and that'any variety Of' dies may beuseddep'ending on the job *to be done. I

' Having thus described my invention what I'claim asnewand'desire'to'seeure by Letters Patent is p j 1. A machine of theclass describedhaving two work-engaging instrumentalities relativelymovable in predetermined"pathswith respect to each other, andpositionablein inside and outside radiused arcs, mounting means for oneof said instrumentalities and bodily movable to a position wher'ein'therelative paths of movement ot the saiddnstiumentalities willbe sochanged that the same may be located inpredetermined shortradiused arcsof inside or outside radii. L

2. A machine of the class described Having two work-engaginginstrum-enta'lities rela tively movable in predeterminedp'athswithrespect to each other, and'pos'itionable ininside and outsideequally short radiused-arcs and adjustable mounting means for-one ofsaid instrumentalities whereby said paths of movement may be relativelychanged sothat saidinstrumentalities maybe p e loned in oppositelycurved arcs OfSilOl-"b'l'flflll.

3. A; machine of the: class described-haw ing two work-engaginginstrumentalities rel-- ati vely movablein predetermined paths withrespect to each other, and positionable in inside andoutside equallyshort radiused arcs, jacarrl'er upon whichone of said 1nstrumensaidmachine whereby the path of swing of said last-mentioned instrumentalitymay be changed with respect to the other instrumentality and bothinstrun'ienta]ities included in the opposite short radiused arcs of acompound curve.

5. The combination defined in claim 4i,- and means for adjusting saidcarrier relatively of the machine.

6. The combination defined in claim 4, and including, means foradjusting said carrier relatively of the machine, and means for limitingthe movement of said adjusting means.

7. A machine of the class described having two work-engaginginstrumentalities relatively movable in predetermined paths with respectto each other and positionable in inside and. out-sideequally shortradiused arcs, a carrier for oneof said instrumcntalities, and means foradjustably securing said carrier to the machine whereby the same may bemoved to aposition to change the relative paths of saidinstrumentalities whereby the.

same maybe selectively located in oppositely curved arcs of short radii.

8. The combination defined in claim 7,

and means for adjusting said carrier rel atively of the machine.

9. The combination defined in claim 7,- means for adjusting said carrierrelatively of said machine, and means for limiting the movement of saidadjusting means.

. 10. A machine of the class described having a frame and twowork-engaging instrm mentalities one fixedly journalled in said frameand the other swingably mounted, a carrier plate having a bearing towhich said swingable instrumentality is secured, guide studs carried bysaid frame, said carrier plate having slots through which said studsextend, nuts on the ends of said studs for securing said carrier plateagainst said frame, a cam projecting through said carrier plate andhaving a shank extending into said frame, said shank having a flangeengaging the inner face of said carrier plate whereby the shank will beheld against outward movement, a finger piece projecting laterally fromthe outer end of said cam and playing overthe outer face of said carrierplate, studs pro ect- I ing from the outer face of said carrier platefor engaging said finger piece to limit the throw of said cam, and saidfinger-piece having inscriptions on opposite sides thereof to indicatethe relative position of said plate.

. 11. The combination. defined in claim 10, said plate having alongitudinal groove in its inner surface remotely. located from saidslots, a T-headed stud, the frame having a hole for receiving theshankof said stud, the head of the stud engaging in said groove wherebyto assist 1I1 guidin said plate, and said aforementioned studs and nutswhich hold the plate against said frame also serving to hold the head ofsaid T-headed stud in said groove and its shank in the hole in saidframe.

12. A machine of the class described having two major sets ofwork-engaging instrumentalities relatively movable in predeterminedpaths'with respect to each other, a minor set of work-engaging'nstrumentalitiesmovably carried by one of said aforementioned sets andmovable in a predetermined pathwith respect thereto and with respect tosaid other set, mounting means for one of said major sets ofwork-engaging instrumentalities and adjustable bodily toa positionwherein the relative paths of movement of said major and minorinstrumentalities will be so changed that the same may be located inpredetermined short radiuscd arcs of inside or outside radii.

13. A machine of the class described having two working engaginginstrumentalities relatively movable in predetermined paths with respectto each other, a carrier for one of said instrumentalities, means foradj ustably securing said carrier to the machine whereby the same may bemoved to a position to change the relative paths of saidinstrumentalities whereby the same may he located in oppositely curvedarcs of short radii, means for adjusting said carrier relatively of saidmachine, and means for limiting the movement of said adjusting means,and said adjusting means having an indicator portion to denote therelative osition of said carrier.

14. A machine of tie class described having two work engaginginstrumentalities relatively movable in predetermined paths with respectto each other, a carrier for one of said instrumentalities, means foradj ustably securing said carrier to the machine whereby the same may bemoved to a position to change the relative paths of saidinstrumentalities whereby the same may be located in oppositely curvedarcs of short radii, and cam means in part carried by said machine andin part carried by said carrier for adjusting the latter.

15. A machine of the class (lGSCl'llNtl having two work engaginginstrumentalities relatively movable in predetermined paths with respectto each other, a carrier for one of said instrumentalities, means foradjustably securing said carrier to the machine whereby the same may bemoved to a position to change the relative paths of saidinstri'imentalitics whereby the same may be located in oppositely curvedarcs of short radii, cam means in part carried by said machine and inpart carried by said carrier for adjusting the latter, and a laterallyprojecting finger piecc for actuating said cam means. i

16. A machine of the class described having two work engaginginstrimientalities relatively movable in predetermined paths withrespect to each other, a carrier for one of said instrumentalities,means for adj ustablysecuring said carrier to themachine 7 whereby thesame maybe located in oppoter, a laterally projecting finger piece. forV actuating said cam means,-and stop elements -carried by said carrierfor engaging said finger piece to limit the movement oi said cam. V c

17. A machine of the class described having two work engaginginstrumentalities relatively movable in predetermined paths with respectto each other, a carrier for one of said instrumentalities, means foradjustably securing said carrier to the machine whereby the same may bemoved to a position to change the relative paths of saidinstrumentalities whereby the same may be located'in oppositely curvedarcs of short radii, cam means in part carried by said machine andinpa'rt carried by said carrier for adjusting the lat.- ter, a laterallyprojecting finger piece for actuating said cam means, and a shoulder onsaid cam means and engaged by said carrier whereby saidcarrier securingmeans serves to holdsaid cam means in operative position.

18. A machine of the. class described having two work engaginginstrumentalities relatively movable in predetermined paths with respectto each other, a carrier for one of said instrumentalities, means foradjust-c ably securing said carrier to the machine whereby the samemaybe moved to a position toohange the relative paths of saidinstrumentalities whereby the same may be located in oppositely curvedarcs of short radii, cam means in part carried by said machine and inpart carried by said carrier for adjusting the latter, alaterallyprojecting finger piece for actuating said cam means, saidfinger piece having inscrlptio'ns on opposite sides thereof to indioatethe position ofsaidcarrier and stop elements projecting from saidcarrier and engaging said finger piece to limit the throw of said cam.

19. The combination with a machine of the themachine whereby the path ofswing of said last mentioned instrumentality may be changed with respectto the other instrumentality, means for adjusting said carrierrelatively of the machine, means for limiting the movement of said adustmg means, and said adjusting means having an indicator portion todenote the relative position of said carrier.

ing a wor -engaging instrumentality, a carnew for sald Work-engaginginstrumentahty,

20. In a machine of the class described hav adjusting means for saidcarrier, said adjusting means having an indicator portion to denote therelative position of said carrier, and means engaging said indicatorportion for limiting the movement of saidadjusting means.

In testimony whereof I aihx my signature; 7

WILBER I R. v

